20980635

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6329}}^1$

素因数の和:6367

約数の個数: 32

約数和(自身を含む): 38283840

約数和(自身を除く): 17303205

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 6329, 18987, 31645, 82277, 94935, 107593, 246831, 322779, 411385, 537965, 1234155, 1398709, 1613895, 4196127, 6993545, 20980635]

約数ペア:

[(1, 20980635), (3, 6993545), (5, 4196127), (13, 1613895), (15, 1398709), (17, 1234155), (39, 537965), (51, 411385), (65, 322779), (85, 246831), (195, 107593), (221, 94935), (255, 82277), (663, 31645), (1105, 18987), (3315, 6329)]